"Observable" is the one characteristic of event that must exist when <span>using science to investigate physical phenomena. </span>
Answer:
electrolysis of brine
Explanation:
Rock salt deposits are usually mined; occasionally water is pumped down, and brine which contain 25 percent of sodium chloride is found
so d brine is electrolyzed to produce chlorine
Answer:
A
Explanation:
Polypeptides such as proline and glycine are capable of making a sharp turn called a reverse turn due to the suitability and flexibility of their cyclic structure
Answer: 1, magnesium & mg
2, two energy shells
Explanation:
